Sliding door.



Patented Feb. l3, I900.

E. & A. SCHMITT.

SLIDING 000B.

(Application filed Oct. 27, 1899.)

(he Modal.)

IN yen/700s W/T/VESSES:

THE NORRIS PETERS c0. Pnoruu'mo WASHINGTON, 9.1;.

ramps an Fries.

SLIDING DOOR.

SPECIFICATION forming part of Letters Patent No. 643,307, dated February 13, 1900.

Application filed October 2'7, 1899. Serial No. 734,9 76. (N0 model.)

To ctZZ whom it may concern.-

' Be it known that we, EHRHARD SOHMITT and ANDREAS SOHMITT, subjects of the King of Bavaria,and residents of Nure1nbe.rg,Kingdom of Bavaria, Empire of Germany, have invented certain new and useful Improvements in Sliding Doors, of which the following is a full, clear, and exact description.

The present invention relates to sliding doors; and it consists in constructing the wings of such doors so as to slide telescopically one into the other and of other details of construction hereinafter particularly set forth.

In order to render the present specification easily intelligible, reference is had to the accompanying drawings, in which similar letters of reference denote similar parts throughout the several views.

Figure 1 is a sectional plan of a door constructed according to the present invention. Fig. 2 is a front elevation; Fig. 3, a part vertical section through two wings and the neigh-. boring parts of the door-frame; Fig. 4, a part side elevation, drawn to a larger scale, of the upper roll. Fig. 5 is a similar detail elevation of the lower guide-rail; Fig. 6, a detail elevation of the stop mechanism for the central wing; Fig. 7, a detail horizontal section of the said mechanism, and Fig. 8 a detail vertical section showing the guide-rail for the outer or double wing.

In the drawings each half of the sliding door is shown with two wings; but any number of wings may be employed.

Each door consists of two wings a o a a, of which a and a are double to receive the wings a and a when the door is opened or pushed back. The doors are suspended on rolls b I), having flanges and adapted to run on rails o, the said rails c 0 being attached to U-shaped iron girders g, fixed to cross-stays f, the said rolls being suspended in hangers, as shown at Fig. 3. The two parts a of the double door are connected together by means of plates 6 e at the back, which also serve to prevent the member a from passing too far rearward between the members of the part a. To one of the girders g is attached a third rail 0, situated between the rails c c for the part a and on which rail the member a or a runs. The two members of the part a, as also those a are provided with grooves h along the bottom edge, which are guided on the upturned ends of a U-shaped guidepiece 2', situated within the door-housings d d and not visible from the rooms divided by the said door. The lower edge of the parts a a is also provided with a similar groove h,which runs on a projecting guide-piece is, mounted in the member a at the front lower corner of the same.

The members a a are prevented from being drawn out too far by means of a stop 0, Figs. 6 and 7, which travels in a groove 19 of the member ct, and the members a and a are limited in their movements by means of recesses m m, formed in the ledges m m, which make up the frame n d d of the doorway, as will be seen from Fig. 1. Within the door-frame buffers Z Z are provided, which receive the parts a and a when they are folded together, and the cross-pieces e e serve to limit the backward movement of the members a and a n In opening the doorway the members a and a are slid back, telescoping into the members 0L and a and the latter are pushed back I into the door-frame parts at and d.

We claim as our invention- 1. The combination with the door-frame, of the sliding double wings arranged adjacent to each side of the frame, a central wing carried between each double wing, two tracks supporting the double wings and a single central track supporting both single wings.

2. In a folding door, the combination. with a sliding double wing arranged adjacent to each side frame and a single sliding wing arranged centrally of each double wing, of a frame having a narrow central way adapted to guide the central wings, and enlarged guidingways at each end of the central way, adapted to confine the double wings, and the shoulders formed at the forward end of the enlarged way forming limitingestops for the double wings.

3. The combination with the telescoping doors comprising double wings and a central wing arranged between the same, of a plate secured to the floor having parts engaging each of the double wings to guide the same, and a plate carried between said double wings to guide the central wing, substantially as described.

In witness whereof we have hereunto set our hands in presence of two witnesses.

EHRHARD SOHMITT. ANDREAS SOHMITT. Witnesses:

ANDREAS STIOH, OSCAR BooK. 

